I'm not sure if this will work but it worked for me..Shut down your computer then restart. As soon as you turn it on start pushing the eject button on the side..The one that turns blue. Do this at a constant fast pace..

If you have an XPS ONe ..all in one.. take the back cover off..(2 small screws at the bottom and slide the cover off) on the CD drive there are 2 small screws holding up a cover with a wire ( the LED lights are part of that piece)...underneath that there is a black platic cover with a button,. next to it is a small hole..(it's hard to see, but it's there) put in a paper clip end....you'll feel a spring type push back.. push.. the CD will then come out.. It worked for me...

I was having the exact same issue. Finally was able to eject the disc. Re-start the computer and continually push the eject button. The disc ejected when the windows loading screen came up. Hope this works for the rest of you. Dell needs to get on this. It would be nice to be able to use my DVD/CD drive again.